Trivalent and heavy metal ions

Trivalent and heavy metal ions represent a broad class of inorganic cations that include both essential micronutrients, such as iron and copper, and non-essential systemic toxins like lead, mercury, and cadmium. These ions exert biological effects primarily by interacting with electron-rich functional groups, particularly sulfhydryl (-SH) groups on proteins, which can lead to enzyme inhibition, structural protein damage, and the generation of reactive oxygen species (ROS) (StatPearls, NBK557467). In clinical pharmacology, these ions are the primary targets of chelation therapy, where specific ligands (chelators) bind the metal ions to form stable, non-toxic, and water-soluble complexes that are subsequently excreted via the kidneys or bile (StatPearls, NBK541083). This therapeutic approach is vital for managing acute and chronic metal poisoning, as well as genetic disorders of metal metabolism like Wilson's disease or hereditary hemochromatosis (NIH, Hemochromatosis). However, targeting these ions requires careful monitoring due to the risk of chelators binding essential minerals or causing renal injury during the excretion process (PubChem, Deferoxamine).

Other names

Heavy metalsToxic metal ionsTrivalent metal cationsInorganic metal ions

Chelation and sequestration of metal ions into stable, water-soluble complexes for renal or biliary excretion.